From nobody Tue Feb 10 11:32:39 2026 Received: from mail-pj1-f50.google.com (mail-pj1-f50.google.com [209.85.216.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 760CB23875A; Wed, 5 Mar 2025 11:10:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.50 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741173028; cv=none; b=VSaUZU0vRc9ONLlaLy6sHAH/2OvjtJYZcXZMhUj/W3mDIPl5qQfk9LNg7krLtb2H7OOr6UvINGVMWBof6xd164PJcd1l9Linn/hbOe/F5qg57bxYamFDt1BpB0IlPDe3MY/35LfpIhAnr7VL/wzuWe6FJDb1clBWNtXCMFxScns= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741173028; c=relaxed/simple; bh=mdMjqDgKLmfSj3Eltmr/eklydzSfhT7tfE+JI7T4puc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=baITr5WgBe9lkqFYaiiyy5zq2ETDK/9WUiRf4UpCm/CkKc6jMSz6p+28uOe3U9SjZDz9GK7Cf1PXgy8b0a/kLcFR9MrOq0HylvW1jIPoNKJ6fCv2BbbYxLDmwIpjOu9NsBfAVFu20FrzcRc9Gxoa6xHnMPGzhTDIjHw3JJOzc/w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=b1RRQbA/; arc=none smtp.client-ip=209.85.216.50 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="b1RRQbA/" Received: by mail-pj1-f50.google.com with SMTP id 98e67ed59e1d1-2febaaf175fso8609959a91.3; Wed, 05 Mar 2025 03:10:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1741173026; x=1741777826; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=t/DonzYY8ky0NPr6wCGSqroH7cDtAqrs9o10+/q7fXY=; b=b1RRQbA/bRlQvPauZXsRdoPbN26wO9WPghhtQDqJ5VWY4HM+3pwKPwUzQ0aqAVxS+A ivDX2tjyKhSTLj/996rokeC5LGYh1mHUA7sPmDQcmm6kSskwSW9a3W0LnY7tsWeM6l2O gG7Ue/U8zn28gF2OTT4UjzSkz/AsYtj/ggl4I+uDHPUGZMipdEf6l18+L6Gh1PG3R1sn b8S1wiyM6OTywz0CJCu0jtOzhfFidy1PRCQSfLlCeQIB88dyxzrhSJ02yhbXlzsRsqFe k/ctWJJ6PLXHyaSn73g5CSu+7AT7eSquRlQ88CB6TMlh3v+3gxJ8qWjO3JA4u2Zq68+z ITFQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1741173026; x=1741777826; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=t/DonzYY8ky0NPr6wCGSqroH7cDtAqrs9o10+/q7fXY=; b=gHGkFoSfduzL+oakuZnRMKlNBEfrWHE+6GydtC74ZnNAsZ5t52+B+r9NyWclAffJzd nXty3LVdemTpz041P+HRsIRfqm1Puqnip8Dj7sRhjr1WttcgcbQDNhIHKqxWJkYx+wLd TRybfHdTAkJCQV2fIA4ehuwX7KpsjiJMkVVo8b635Py0djrebHqAehRXl+DhnpK2xikI /DaqEXnXmajGO5Q0qVKnzSiEBOm7ntSd/qUN1LLLjAWytKIbesK2YAxRTbRbHjpT9/dB QJ/EpsH6zoWe6VwRdMm18kMeofUzz/oXYNla+zoUmTuK6HhCIkDP62C7v1fnpOjMGTf1 1mIQ== X-Forwarded-Encrypted: i=1; AJvYcCWiLSEfaUjI97zxa/XZbxei/3JuKHPueYxo3LN2HFoVbxgkJaYGT4d0WCu70/XRG8XVPQUpuKzirmIWma+6Vw==@vger.kernel.org X-Gm-Message-State: AOJu0YzRr34ED2+MrUUX2ILPvqcDiyv3Lhy7oazhQav1l4ysKfRvuu79 G0ugWT1cwQM+ahbpO37ntFBpaaI36aFq2Lhn5d3k5RDQN5s54y+G2i0CxTOR X-Gm-Gg: ASbGncvr591uHnClaMqp9I2NthUPkvw0eLzuaBPWMW857412y+s/J2Aq5pa2cTzZw3z kkaqQSLaKvHJcyvN57Jl9FX0lNKJ1TAThPktT7IuAiKXaOglY0MgROk78hvzrF9qYkoq7m5Td4J txt1hqn4VlOofac0/pHg4o5ZHxicplBaQzY5+kxTXcqxsdo00kc5sTUj7hkeoyFlHvBl9pWPqhV UyvD7gy8tk/Y9YRYLiN5pi+TFISThK5tK1gy657K1hEOTxkfAh0zeGWypBY9QHPeLPyy/Hy7HQc uwl0PYa1lVp53rzmHk4+hSOShjSDHQJZbVPE5jJTDyeXppvbg1jadskPvl5vYViP9nFV3rM0hdr V48y+T/rH9XsDTf47ZpOm7g== X-Google-Smtp-Source: AGHT+IHP0xBykbnwKXKfbmIat/96KZep+usQi4KEOXfaQ1XfgMnIYfTVt4U0//4lVI6PNsYEyT+Ccw== X-Received: by 2002:a17:90b:1d45:b0:2f5:63a:449c with SMTP id 98e67ed59e1d1-2ff49840804mr4412875a91.28.1741173026565; Wed, 05 Mar 2025 03:10:26 -0800 (PST) Received: from mew.. (p4204131-ipxg22701hodogaya.kanagawa.ocn.ne.jp. [153.160.176.131]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2ff4e7737a5sm1060925a91.13.2025.03.05.03.10.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Mar 2025 03:10:26 -0800 (PST) From: FUJITA Tomonori To: linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org Cc: Catalin Marinas , x86@kernel.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, peterz@infradead.org, hpa@zytor.com, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, will@kernel.org, chenhuacai@kernel.org, kernel@xen0n.name, tangyouling@loongson.cn, hejinyang@loongson.cn, yangtiezhu@loongson.cn, ojeda@kernel.org, alex.gaynor@gmail.com, boqun.feng@gmail.com, gary@garyguo.net, bjorn3_gh@protonmail.com, benno.lossin@proton.me, a.hindborg@kernel.org, aliceryhl@google.com, tmgross@umich.edu Subject: [PATCH v4 3/4] arm64/bug: Add ARCH_WARN_ASM macro for BUG/WARN asm code sharing with Rust Date: Wed, 5 Mar 2025 20:08:13 +0900 Message-ID: <20250305110814.272792-4-fujita.tomonori@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250305110814.272792-1-fujita.tomonori@gmail.com> References: <20250305110814.272792-1-fujita.tomonori@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add new ARCH_WARN_ASM macro for BUG/WARN assembly code sharing with Rust to avoid the duplication. No functional changes. Acked-by: Catalin Marinas Signed-off-by: FUJITA Tomonori --- arch/arm64/include/asm/asm-bug.h | 33 ++++++++++++++++++++++++++++---- 1 file changed, 29 insertions(+), 4 deletions(-) diff --git a/arch/arm64/include/asm/asm-bug.h b/arch/arm64/include/asm/asm-= bug.h index 6e73809f6492..a5f13801b784 100644 --- a/arch/arm64/include/asm/asm-bug.h +++ b/arch/arm64/include/asm/asm-bug.h @@ -21,16 +21,21 @@ #endif =20 #ifdef CONFIG_GENERIC_BUG - -#define __BUG_ENTRY(flags) \ +#define __BUG_ENTRY_START \ .pushsection __bug_table,"aw"; \ .align 2; \ 14470: .long 14471f - .; \ -_BUGVERBOSE_LOCATION(__FILE__, __LINE__) \ - .short flags; \ + +#define __BUG_ENTRY_END \ .align 2; \ .popsection; \ 14471: + +#define __BUG_ENTRY(flags) \ + __BUG_ENTRY_START \ +_BUGVERBOSE_LOCATION(__FILE__, __LINE__) \ + .short flags; \ + __BUG_ENTRY_END #else #define __BUG_ENTRY(flags) #endif @@ -41,4 +46,24 @@ _BUGVERBOSE_LOCATION(__FILE__, __LINE__) \ =20 #define ASM_BUG() ASM_BUG_FLAGS(0) =20 +#ifdef CONFIG_DEBUG_BUGVERBOSE +#define __BUG_LOCATION_STRING(file, line) \ + ".long " file "- .;" \ + ".short " line ";" +#else +#define __BUG_LOCATION_STRING(file, line) +#endif + +#define __BUG_ENTRY_STRING(file, line, flags) \ + __stringify(__BUG_ENTRY_START) \ + __BUG_LOCATION_STRING(file, line) \ + ".short " flags ";" \ + __stringify(__BUG_ENTRY_END) + +#define ARCH_WARN_ASM(file, line, flags, size) \ + __BUG_ENTRY_STRING(file, line, flags) \ + __stringify(brk BUG_BRK_IMM) + +#define ARCH_WARN_REACHABLE + #endif /* __ASM_ASM_BUG_H */ --=20 2.43.0